606
FNCA52 TJSJ 291930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST WED APR 29 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-300800-
SOUTHEAST COASTAL PLAINS-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 50 20 50
TEMP (24H TREND) 71 (-2) 88 (+1) 71 89
RH % (24H TREND) 95 (+7) 56 (-4) 94 52
WIND 20FT/EARLY(MPH) E 8 E 11 E 9 E 10
WIND 20FT/LATE(MPH) NE 6 SE 11 NE 9 SE 11
MIXING HGT(FT-AGL/MSL) 4050 4430
TRANSPORT WND (MPH) SE 10 E 12
VENT RATE (KT-FT) 36450 44300
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-300800-
SOUTHERN HILLS-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 50 10 60
TEMP (24H TREND) 68 (-3) 84 (+2) 68 85
RH % (24H TREND) 98 (+5) 66 (-8) 98 64
WIND 20FT/EARLY(MPH) NE 6 E 10 E 9 E 9
WIND 20FT/LATE(MPH) NE 6 SE 10 E 8 SE 9
MIXING HGT(FT-AGL/MSL) 4430 4910
TRANSPORT WND (MPH) SE 8 E 12
VENT RATE (KT-FT) 31010 49100
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-300800-
NORTH COASTAL PLAINS-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 70 20 50
TEMP (24H TREND) 71 (-2) 88 (+1) 71 89
RH % (24H TREND) 100 (+5) 62 (-7) 100 61
WIND 20FT/EARLY(MPH) E 11 E 9 E 10 E 10
WIND 20FT/LATE(MPH) E 11 E 10 SE 8 E 16
MIXING HGT(FT-AGL/MSL) 3210 4520
TRANSPORT WND (MPH) E 6 E 9
VENT RATE (KT-FT) 16050 36160
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-300800-
NORTHERN HILLS-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 50 70 20 60
TEMP (24H TREND) 69 (-2) 87 (+2) 69 87
RH % (24H TREND) 100 (+3) 66 (-5) 99 64
WIND 20FT/EARLY(MPH) E 10 E 6 E 9 E 9
WIND 20FT/LATE(MPH) E 10 NE 8 SE 6 E 12
MIXING HGT(FT-AGL/MSL) 4510 5190
TRANSPORT WND (MPH) E 2 E 7
VENT RATE (KT-FT) 9020 31140
DISPERSION 4 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-300800-
WEST COAST-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 30 60 10 70
TEMP (24H TREND) 71 (-1) 89 (+1) 71 89
RH % (24H TREND) 99 (+5) 63 (-5) 99 61
WIND 20FT/EARLY(MPH) NE 12 SE 10 NE 11 E 11
WIND 20FT/LATE(MPH) E 12 E 10 E 10 E 10
MIXING HGT(FT-AGL/MSL) 4220 4620
TRANSPORT WND (MPH) SE 7 E 8
VENT RATE (KT-FT) 25320 32340
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-300800-
EASTERN INTERIOR-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 40 50
TEMP (24H TREND) 69 (-3) 86 (+2) 69 87
RH % (24H TREND) 99 (+3) 65 (-6) 99 63
WIND 20FT/EARLY(MPH) E 8 SE 9 E 9 E 9
WIND 20FT/LATE(MPH) E 6 SE 9 E 9 E 10
MIXING HGT(FT-AGL/MSL) 4380 4900
TRANSPORT WND (MPH) SE 9 E 12
VENT RATE (KT-FT) 35040 49000
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-300800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 50 50
TEMP (24H TREND) 68 (-2) 82 (+3) 68 83
RH % (24H TREND) 99 (+1) 69 (-9) 100 67
WIND 20FT/EARLY(MPH) E 6 SE 9 E 6 E 9
WIND 20FT/LATE(MPH) E 5 SE 9 E 6 E 9
MIXING HGT(FT-AGL/MSL) 4000 4390
TRANSPORT WND (MPH) SE 9 E 12
VENT RATE (KT-FT) 32000 43900
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-300800-
CENTRAL MOUNTAIN RANGE-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 40 70 10 70
TEMP (24H TREND) 66 (-3) 85 (+5) 66 85
RH % (24H TREND) 100 (+4) 70 (-7) 99 67
WIND 20FT/EARLY(MPH) E 9 SE 6 E 8 E 6
WIND 20FT/LATE(MPH) E 9 E 8 E 6 E 6
MIXING HGT(FT-AGL/MSL) 5530 5600
TRANSPORT WND (MPH) SE 3 E 7
VENT RATE (KT-FT) 16590 33600
DISPERSION 4 5
DSI 1 6 1 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-300800-
CAYEY MOUNTAIN RANGE-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 40 50
TEMP (24H TREND) 68 (-2) 81 (+2) 68 82
RH % (24H TREND) 100 (+1) 71 (-5) 100 68
WIND 20FT/EARLY(MPH) E 5 E 9 E 6 E 8
WIND 20FT/LATE(MPH) NE 5 SE 9 E 6 E 9
MIXING HGT(FT-AGL/MSL) 4300 4680
TRANSPORT WND (MPH) SE 9 E 13
VENT RATE (KT-FT) 34400 51480
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-300800-
VIEQUES-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 50 50
TEMP (24H TREND) 74 (-2) 86 (+1) 73 87
RH % (24H TREND) 91 (+1) 63 (-3) 91 62
WIND 20FT/EARLY(MPH) E 10 E 10 E 12 E 11
WIND 20FT/LATE(MPH) E 9 SE 9 E 11 E 10
MIXING HGT(FT-AGL/MSL) 3250 3170
TRANSPORT WND (MPH) E 9 E 13
VENT RATE (KT-FT) 26000 34870
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-300800-
CULEBRA-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLDY PCLDY PCLDY
PRECIP TYPE TSTMS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 50 50
TEMP (24H TREND) 75 (-2) 88 (+2) 75 88
RH % (24H TREND) 90 (+1) 61 (-7) 92 61
WIND 20FT/EARLY(MPH) E 10 SE 11 E 11 E 11
WIND 20FT/LATE(MPH) E 9 SE 10 E 11 E 10
MIXING HGT(FT-AGL/MSL) 2920 3000
TRANSPORT WND (MPH) SE 13 E 12
VENT RATE (KT-FT) 32120 30000
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-300800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 40 10 60
TEMP (24H TREND) 72 (-2) 89 (+1) 72 90
RH % (24H TREND) 97 (+8) 53 (-5) 96 51
WIND 20FT/EARLY(MPH) E 10 E 12 E 10 E 13
WIND 20FT/LATE(MPH) NE 10 SE 13 E 11 SE 13
MIXING HGT(FT-AGL/MSL) 4400 4500
TRANSPORT WND (MPH) SE 14 E 15
VENT RATE (KT-FT) 52800 58500
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-300800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 50 50 40
TEMP (24H TREND) 74 (-3) 85 (+1) 74 85
RH % (24H TREND) 91 (+3) 63 (-5) 91 63
WIND 20FT/EARLY(MPH) E 10 SE 11 E 12 E 10
WIND 20FT/LATE(MPH) E 10 SE 10 E 12 E 10
MIXING HGT(FT-AGL/MSL) 2990 3040
TRANSPORT WND (MPH) SE 12 E 12
VENT RATE (KT-FT) 29900 30400
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-300800-
ST CROIX-
330 PM AST WED APR 29 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE TSTMS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 30 40
TEMP (24H TREND) 74 (-2) 86 (+1) 74 86
RH % (24H TREND) 92 (+2) 64 (-5) 92 62
WIND 20FT/EARLY(MPH) E 9 SE 11 E 11 E 12
WIND 20FT/LATE(MPH) E 10 SE 10 E 11 E 11
MIXING HGT(FT-AGL/MSL) 4120 4390
TRANSPORT WND (MPH) E 10 E 14
VENT RATE (KT-FT) 37080 52680
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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